EP0001299A1 - Trailer towing devices - Google Patents
Trailer towing devices Download PDFInfo
- Publication number
- EP0001299A1 EP0001299A1 EP78200087A EP78200087A EP0001299A1 EP 0001299 A1 EP0001299 A1 EP 0001299A1 EP 78200087 A EP78200087 A EP 78200087A EP 78200087 A EP78200087 A EP 78200087A EP 0001299 A1 EP0001299 A1 EP 0001299A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bars
- rods
- trailer
- bearings
- inertia
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/20—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
- B60D1/34—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving springs
- B60D1/345—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving springs the springs being of the bar or leaf type
Definitions
- each telescopic assembly suitably articulated by a Cardan system, was constantly stressed in extension by a spring whose relaxation ensured the constancy of the force to be transmitted to said boom regardless of the angle formed by the trailer and the towing vehicle.
- the improvements of the invention which overcome these drawbacks consist in using two elastically deformable rods, articulated on a common axis at the end of the boom of the trailer, said rods being suitably bent so as to come to take constant and elastically support by their free end on each of the corresponding stabilizing bars of the coupling, said bars and rods comprising mutual drive and guiding means determining their various relative angular positions as a function of the braking and of the steering angle formed by said trailer and the towing vehicle.
- 1 is the fitting of the usual coupling of a towing vehicle
- 2 is the ball joint for hooking the boom F of a trailer
- 3 is the stabilizing bars, said boom being equipped with a system 4 usual inertial braking.
- the stabilizing bars 3 made of spring steel are pivoted at 5 in the fitting 1, then their free end is hung in tension on the corresponding side of the arrow F by means of an adjustable tie rod 6, articulated on the one hand, in 7 on each of said bars 3 and, on the other hand, on said arrow by means of a hinge 8 with the Cardan joint being housed in a yoke 9, pivoting and lockable from in a known manner between the wings of a profiled upright 10 made integral with each of the sides of said arrow.
- the tensioning of the bars 3 has the effect of generating at the level of the braking system 4, a force directed downwards, compromising the free sliding by inertia of the hydraulic control of said braking system.
- the device of the present invention which makes it possible to cancel this force by applying to it an antagonistic force generated during the tensioning of the stabilizing bars 3, consists in using two rods 11 elastically deformable, articulated freely on a common axis 12 with interposition of needle thrust bearings 13, on a part 14 made integral with the end of the boom of the trailer, said rods suitably arched downward, taking elastic and constant support by their free end at a determined point of each of the corresponding stabilizing bars 3 of the coupling.
- each link 11 has a longitudinal slot 15 in which can be moved a finger 16 shouldered, carried by each of the stabilizing bars 3, underlying.
- Figure 5 which illustrates a turning position shows the angular movements of the articulated assembly formed by the bars 3 and the rods 11 elastically deformable.
- Figure 4 shows that before the banding of the stabilizing bars 3, by means of the aforementioned tie rods 6, the free ends of the links 11 normally arched downward are in abutment on said bars so that during the tensioning of the latter said links bend elastically upwards, this permanent elastic stress canceling, by reaction, the torque effect applied to the braking system.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Vehicle Body Suspensions (AREA)
- Regulating Braking Force (AREA)
Abstract
Perfectionnements aux dispositifs d'attelage pour remorques, à dispositif de freinange à commande par inertie, du genre de ceux comportant des barres stabilisatrices dont la mise en tension engendre un couple ayant pour but d'équilibrer les forces appliquées au véhicule tracteur et comportant un dispositif annulant la force de réaction appliquée aux paliers du coulisseau de commande par inertie des freins de la remorque en créant une force antagoniste ascendante appliquée aux dits paliers, caractérisés en ce que cette force antagoniste est réalisée au moyen de deux biellettes (11) élastiquement déformables, articulées librement sur un axe commun (12) à l'extrémité de la flèche (F) de la remorque et dont l'extrémité libre de chacune d'elles, normalement cambrée vers le bas, est en appui élastique permanent sur la barre stabilisatrice (3) correspondante de l'attelage, des moyens étant prévus pour maintenir les biellettes sur les barres pendant la traction, le braquage et le freinage.Improvements to coupling devices for trailers, with inertia-controlled braking device, of the type comprising those of stabilizing bars the tensioning of which generates a torque intended to balance the forces applied to the towing vehicle and comprising a device canceling the reaction force applied to the bearings of the control slide by inertia of the trailer brakes by creating an upward opposing force applied to the said bearings, characterized in that this opposing force is produced by means of two elastically deformable links (11), articulated freely on a common axis (12) at the end of the boom (F) of the trailer and whose free end of each of them, normally arched downward, is in permanent elastic support on the stabilizer bar ( 3) corresponding to the coupling, means being provided to maintain the links on the bars during traction, turning and braking.
Description
Dans le brevet Français N° 1 598 248 déposé le 29/11/1968 au nom de la demanderesse on a décrit des perfectionnements aux dispositifs d'attelage pour remorques, à dispositif de freinage à commande par inertie,du genre de ceux comportant des barres stabilisatrices dont la mise en tension engendrait un couple ayant pour but d'équilibrer les forces appliquées au véhicule tracteur.In French Patent No. 1,598,248 filed on 11/29/1968 in the name of the Applicant, improvements have been described to coupling devices for trailers, to braking device with inertia control, of the kind with bars stabilizers, the tensioning of which produced a torque intended to balance the forces applied to the towing vehicle.
Ces perfectionnements consistaient à annuler la force de réaction appliquée aux paliers du coulisseau de commande par invertie des freins de la remorque par une force ascendante appliquée auxdits paliers, ladite force étant créée lors de la mise en tension des barres stabilisatrices.These improvements consisted in canceling the reaction force applied to the bearings of the control slider by inverting the trailer brakes by an upward force applied to said bearings, said force being created when the stabilizing bars are tensioned.
Cette force était transmise à la flèche d'attelage au moyen de deux ensembles télescopiques latéraux la réunissant aux barres stabilisatrices correspondantes, chaque ensemble télescopique, convenablement articulé par un système à la Cardan,était constamment sollicité en extension par un ressort dont la détente assurait la constance de la force à transmettre à ladite flèche quel que soit l'angle formé par la remorque et le véhicule tracteur.This force was transmitted to the drawbar by means of two lateral telescopic assemblies joining it to the corresponding stabilizer bars, each telescopic assembly, suitably articulated by a Cardan system, was constantly stressed in extension by a spring whose relaxation ensured the constancy of the force to be transmitted to said boom regardless of the angle formed by the trailer and the towing vehicle.
Ces dispositifs télescopiques à ressort donnaient satisfaction mais ils étaient d'une fabrication coûteuse et présentaient un certain encombrement, vers l'extrémité de la flèche, souvent nuisible au logement de la roue dite "jockey ".These telescopic spring devices gave satisfac tion but they were expensive to manufacture and had a certain size, towards the end of the arrow, often harmful to the housing of the wheel called "jockey".
Les perfectionnements de l'invention qui remédient à ces inconvénients consistent à utiliser deux biellettes élastiquement déformables, articulées sur un axe commun à l'extrémité de la flèche de la remorque, lesdites biellettes étant convenablement cambrées de façon à venir prendre constamment et élastiquement appui par leur extrémité libre sur chacune des barres stabilisatrices correspondantes de l'attelage, lesdites barres et biellettes comportant des moyens d'entraînement et de guidage mutuels déterminant leurs diverses positions angulaires relatives en fonction du freinage et de l'angle de braquage formé par ladite remorque et le véhicule tracteur.The improvements of the invention which overcome these drawbacks consist in using two elastically deformable rods, articulated on a common axis at the end of the boom of the trailer, said rods being suitably bent so as to come to take constant and elastically support by their free end on each of the corresponding stabilizing bars of the coupling, said bars and rods comprising mutual drive and guiding means determining their various relative angular positions as a function of the braking and of the steering angle formed by said trailer and the towing vehicle.
L'invention sera mieux comprise par la description qui va suivre faite en se reférant aux dessins annexés à titre d'exemple indicatif seulement,sur lesquels :
- La figure 1 est une vue en élévation d'un dispositif d'attelage à barres stabilisatrices usuelles montrant sa liaison élastique avec la flèche d'une remorque, conformément à l'invention ;
- La figure 2 en est la vue de dessus ;
- La figure 3 est une vue en perspective éclatée du dispositif de l'invention ;
- La figure 4 est une vue analogue à la figure 1 montrant la position des biellettes et des barres stabilisatrice avant leur tension ;
- La figure 5 est une vue de dessus du dispositif d'attelage pendant le braquage du véhicule tracteur.
- Figure 1 is an elevational view of a coupling device conventional stabilizer bars showing its elastic connection with the boom of a trailer, according to the invention;
- Figure 2 is the top view;
- Figure 3 is an exploded perspective view of the device of the invention;
- Figure 4 is a view similar to Figure 1 showing the position of the rods and stabilizer bars before their tension;
- Figure 5 is a top view of the device coupling while the towing vehicle is turning.
En se reportant aux dessins, 1 est la ferrure de l'attelage usuel d'un véhicule tracteur, 2 est la rotule d'accrochage de la flèche F d'une remorque et 3 les barres stabilisatrices, ladite flèche étant équipée d'un système 4 de freinage par inertie usuel.Referring to the drawings, 1 is the fitting of the usual coupling of a towing vehicle, 2 is the ball joint for hooking the boom F of a trailer and 3 the stabilizing bars, said boom being equipped with a system 4 usual inertial braking.
Dans ce système d'attelage, les barres 3 stabilisatrices réalisées en acier à ressort sont pivotées en 5 dans la ferrure 1 puis leur extrémité libre est accrochée en tension sur le côté correspondant de la flèche F au moyen d'un tirant 6, réglable, s'articulant d'une part,en 7 sur chacune desdites barres 3 et,d'autre part, sur la dite flèche par l'intermédiaire d'une articulation 8 à la Cardan se logeant dans une chape 9, pivotante et verrouillable d'une façon connue entre les ailes d'un montant profilé 10 rendu solidaire de chacun des côtés de ladite flèche.In this coupling system, the stabilizing
La mise en tension des barres 3 a pour effet d'engendrer au niveau du système 4 de freinage, une force dirigée vers le bas, compromettant le libre coulissement par inertie de la commande hydraulique dudit système de freinage.The tensioning of the
Le dispositif de la présente invention, qui permet d'annuler cette force en lui appliquant une force antagoniste engendrée lors de la mise en tension des barres stabilisatrices 3, consiste à utiliser deux biellettes 11 élastiquement déformables, articulées librement sur un axe 12 commun avec interposition de butées à aiguilles 13, sur une pièce 14 rendue solidaire de l'extrémité de la flèche de la remorque, lesdites biellettes convenablement cambrées vers le bas, prenant élastiquement et constamment appui par leur extrémité libre en un point déterminé de chacune des barres 3 stabilisatrices correspondantes de l'attelage.The device of the present invention, which makes it possible to cancel this force by applying to it an antagonistic force generated during the tensioning of the stabilizing
A cet effet et selon un mode de réalisation, chaque biellette 11 présente une lumière 15 longitudinale dans laquelle peut se déplacer un doigt 16 épaulé, porté par chacune des barres 3 stabilisatrices, sous-jacentes.To this end and according to one embodiment, each
Ainsi, dans une telle disposition les extrémités libres des biellettes 11 restent constamment en appui sur les barres 3 pendant la traction, le freinage ou le braquage.Thus, in such an arrangement the free ends of the
La figure 5, qui illustre une position de braquage montre les déplacements angulaires de l'ensemble articulé formé par les barres 3 et les biellettes 11 élastiquement déformables.Figure 5, which illustrates a turning position shows the angular movements of the articulated assembly formed by the
La figure 4 montre qu'avant le bandage des barres 3 stabilisatrices, au moyen des tirants 6 précités, les extrémités libres des biellettes 11 normalement cambrées vers le bas sont en appui sur lesdites barres de sorte que lors de la tension de ces dernières lesdites biellettes s'infléchissent élastiquement vers le haut,cette contrainte élastique permanente annulant, par réaction, l'effet de couple appliqué au système de freinage.Figure 4 shows that before the banding of the stabilizing
Bien entendu, la présente invention ne se limite pas au mode de réalisation décrit et représenté mais s'étend, au contraire, à toutes variantes de formes, matières et dimensions.Of course, the present invention is not limited to the embodiment described and shown but extends, on the contrary, to all variants of shapes, materials and dimensions.
Claims (3)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7727286A FR2402542A1 (en) | 1977-09-09 | 1977-09-09 | IMPROVEMENTS TO HITCHING DEVICES FOR TRAILERS |
FR7727286 | 1977-09-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0001299A1 true EP0001299A1 (en) | 1979-04-04 |
EP0001299B1 EP0001299B1 (en) | 1980-11-12 |
Family
ID=9195195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP78200087A Expired EP0001299B1 (en) | 1977-09-09 | 1978-07-10 | Trailer towing devices |
Country Status (8)
Country | Link |
---|---|
US (1) | US4278267A (en) |
EP (1) | EP0001299B1 (en) |
AU (1) | AU523459B2 (en) |
CA (1) | CA1097128A (en) |
DE (1) | DE2860274D1 (en) |
ES (1) | ES472975A1 (en) |
FR (1) | FR2402542A1 (en) |
IT (1) | IT1157158B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2289717A1 (en) * | 2009-08-27 | 2011-03-02 | Jean Philippe Le Goff | Trailer with slidable tow bar equipped with a security system for protection against overcharging of the slidable tow bar |
WO2019097005A1 (en) | 2017-11-20 | 2019-05-23 | Lanxess Deutschland Gmbh | Aluminum container containing dicarbonate |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2408475A1 (en) * | 1977-11-10 | 1979-06-08 | Vasseur & Cie Ets | Load distributor for trailers coupling - has flexibly mounted roller acting between flexible stabiliser bar and tow bar |
US4402523A (en) * | 1981-02-23 | 1983-09-06 | Knowles Larry F | Trailer hitch |
FR2580998B1 (en) * | 1985-04-26 | 1989-10-20 | Woestelandt Emile | HITCH STRUCTURE BETWEEN A TRACTOR VEHICLE AND A TRACTOR VEHICLE |
US6155587A (en) * | 1997-03-18 | 2000-12-05 | Milazzo; James D. | Trailer hitch safety apparatus |
US5947504A (en) * | 1997-03-18 | 1999-09-07 | Milazzo; James D. | Trailer hitch safety apparatus |
US6283489B1 (en) * | 1999-09-27 | 2001-09-04 | Josef Thomas Hoog | Anti-sway control device for trailers |
US6419257B1 (en) | 1999-10-05 | 2002-07-16 | Reese Products, Inc. | Adjustable length cam arm for weight distributing hitch assembly |
US6746036B2 (en) * | 2001-03-30 | 2004-06-08 | Cequent Towing Products, Inc. | Sway control conversion bracket |
US7540523B2 (en) * | 2006-12-11 | 2009-06-02 | Ford Global Technologies, Llc | Anti-jackknifing hitch assembly |
US10183536B2 (en) | 2013-03-15 | 2019-01-22 | Horizon Global Americas Inc. | Weight distribution system |
US11780278B2 (en) * | 2020-05-28 | 2023-10-10 | Hall Labs Llc | Sway controlling hitch system |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2562008A (en) * | 1949-06-28 | 1951-07-24 | Williams Chester | Braking device for towed vehicles |
DE1028441B (en) * | 1956-11-20 | 1958-04-17 | Herbert Merz Dr Ing | Pulling device, especially for overrun brakes on single-axle trailers |
FR1373331A (en) * | 1963-10-10 | 1964-09-25 | Stabilizer-compensator for towed vehicles | |
DE1243989B (en) * | 1961-08-29 | 1967-07-06 | Herbert Merz Dr Ing | Drawbar for multi-axle trailers with symmetrically adjustable side rails |
FR1598248A (en) * | 1968-11-29 | 1970-07-06 | ||
FR2210153A6 (en) * | 1972-12-12 | 1974-07-05 | Tunesi Roger |
-
1977
- 1977-09-09 FR FR7727286A patent/FR2402542A1/en active Granted
-
1978
- 1978-07-10 EP EP78200087A patent/EP0001299B1/en not_active Expired
- 1978-07-10 DE DE7878200087T patent/DE2860274D1/en not_active Expired
- 1978-08-10 US US05/932,456 patent/US4278267A/en not_active Expired - Lifetime
- 1978-08-18 IT IT50769/78A patent/IT1157158B/en active
- 1978-08-30 AU AU39371/78A patent/AU523459B2/en not_active Expired
- 1978-08-31 ES ES78472975A patent/ES472975A1/en not_active Expired
- 1978-09-08 CA CA310,954A patent/CA1097128A/en not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2562008A (en) * | 1949-06-28 | 1951-07-24 | Williams Chester | Braking device for towed vehicles |
DE1028441B (en) * | 1956-11-20 | 1958-04-17 | Herbert Merz Dr Ing | Pulling device, especially for overrun brakes on single-axle trailers |
DE1243989B (en) * | 1961-08-29 | 1967-07-06 | Herbert Merz Dr Ing | Drawbar for multi-axle trailers with symmetrically adjustable side rails |
FR1373331A (en) * | 1963-10-10 | 1964-09-25 | Stabilizer-compensator for towed vehicles | |
FR1598248A (en) * | 1968-11-29 | 1970-07-06 | ||
FR2210153A6 (en) * | 1972-12-12 | 1974-07-05 | Tunesi Roger |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2289717A1 (en) * | 2009-08-27 | 2011-03-02 | Jean Philippe Le Goff | Trailer with slidable tow bar equipped with a security system for protection against overcharging of the slidable tow bar |
FR2949422A1 (en) * | 2009-08-27 | 2011-03-04 | Maxicargo | SLIDING TIMBER TRAILER EQUIPPED WITH A SAFETY DEVICE AGAINST OVERLOADING THE SLIDING TIMON |
WO2019097005A1 (en) | 2017-11-20 | 2019-05-23 | Lanxess Deutschland Gmbh | Aluminum container containing dicarbonate |
Also Published As
Publication number | Publication date |
---|---|
IT7850769A0 (en) | 1978-08-18 |
IT1157158B (en) | 1987-02-11 |
US4278267A (en) | 1981-07-14 |
AU523459B2 (en) | 1982-07-29 |
AU3937178A (en) | 1980-03-06 |
FR2402542B1 (en) | 1981-03-20 |
ES472975A1 (en) | 1979-02-16 |
EP0001299B1 (en) | 1980-11-12 |
DE2860274D1 (en) | 1981-02-05 |
FR2402542A1 (en) | 1979-04-06 |
CA1097128A (en) | 1981-03-10 |
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